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Flowering Habit and Yield of Soybean

大豆的开花习性与产量

基本信息

批准号：
07660019
负责人：
KURODA Toshiro
金额：
$ 1.15万
依托单位：
Okayama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07660019/
关键词：
Determinate type Flowering habit Indeterminate type Raceme order Secondary raceme with compound leaf Yield ダイズ花器有限型品種無限型品種

项目摘要

In order to elucidate the differences of flowering habit and yield and yield components according to different raceme orders between determinate and indeterminate types of soybean, cultivars Tatisuzunari (determinate) and Touzan 69 (indeterminate) were used. Although similar trend of flowering habit ie.progression from low to upper plant positions was observed in both types, but the speed of low order raceme on main stem was much more (1.4 phytomers/day) in Tatisuzunari as compared to Touzan 69 (0.8 phytomers/day). In tatisuzunari when 1st order finished to flowering then higher order begins to flowering, but in Touzan 69 1st order on higher plant positions continue to flowering and during this period higher order racemes begin to flowering providing the opportunity to produce more No.of flowers. In Tatisuzunari flower shedding increases with the increase of raceme order but in Touzan 69 maximum shedding is on the 1st and 2nd order racemes. Pod setting ratio in Tatisuzunari on every raceme order is more as compared to Touzan 69. In Tatisuzunari 100 seed weight remains almost constant except very little increase in the secondary raceme with compound leaf, but in Touzan 69 it decreases with the increase of raceme order. Sccondary raceme with compound leaf plays a pivotal role for the determination of total No.of phytomers, No.of flowers, pod setting ratio, No.of pods/plant and 100 seed weight in the Tatisuzunari as compared to Touzan 69. Yield contributing recemes are limited in Touzan 69 as compared to Tatisuzunari. In Touzan 69 leaf length decreases drastically from low position to higher position favoring the even ditribution of light for canopy growth, whereas in Tatisuzunari there is increase in the leaf length from lower to higher positions.

为了阐明有限型大豆和无限型大豆开花习性、产量和产量构成因素的差异，以大豆品种Tatisuzunari（有限型）和Touzan 69（无限型）为材料，研究了有限型大豆和无限型大豆开花习性、产量和产量构成因素的差异。虽然在两种类型中观察到类似的开花习性趋势，即从低植株位置向高植株位置的进展，但是在主茎上的低阶总状花序的速度在Tatisuzunari中（1.4植物体/天）比Touzan 69（0.8植物体/天）大得多。在tatisuzunari中，当第1级完成开花时，然后更高的级开始开花，但是在Touzan 69中，在更高的植物位置上的第1级继续开花，并且在此期间，更高的级总状花序开始开花，提供了产生更多花的机会.在Tatisuzunari中，随着总状花序顺序的增加，花脱落增加，但在Touzan 69中，最大脱落在第1和第2级总状花序上。在各总状花序序上，Tatisuzunari的结荚率均高于Touzan 69。在Tatisuzunari 100种子重量几乎保持不变，除了很少增加的次生总状花序与复叶，但在Touzan 69它减少总状花序顺序的增加。与冬赞69相比，具有复叶的盾叶总状花序在决定Tatisuzunari的植物体总数、花数、结荚率、单株荚数和百粒重方面起着关键作用.与Tatisuzunari相比，Touzan 69的产量贡献外消旋体有限。头山69的叶长从低位到高位急剧减小，有利于冠层生长的光分布均匀，而立铃成的叶长则从低位到高位逐渐增加。